<template>
    <div>
         <!-- 面包屑导航 -->
        <el-breadcrumb separator="/">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>数据统计</el-breadcrumb-item>
            <el-breadcrumb-item>数据报表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图 -->
        <el-card>
             <!-- 为ECharts准备一个具备大小（宽高）的Dom -->
             <div id="main" style="width: 800px;height:400px;"></div>
        </el-card>
    </div>
</template>
<script>
import echarts from 'echarts'
import _ from 'lodash'

export default{
    data(){
        return{
            options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
        }
    },
    created(){},
    async mounted(){
        // 页面元素渲染完毕
        // 基于准备好的dom，初始化echarts实例
        var myChart = echarts.init(document.getElementById('main'))
        const{data:res} = await this.$http.get('reports/type/1')
        if(res.meta.status !==200){
            return this.$message.error('获取数据失败')
        }
        // 指定图表的配置项和数据
        const result = _.merge(res.data,this.options)
        // 5.展示数据
        myChart.setOption(result)
    },
    methods:{}

}
</script>

<style scoped>

</style>